The ultimate lie detector

I am watching some new series called Lie to Me and I am strangely getting a little paranoid. Basically in the show there is a company that gives consultation in various cases to try to determine if people are lying, and they base their conclusions exclusively in facial expressions. I am watching that with close attention and by now I am starting to pick up their method which actually is based on general glitches people have when lying.  At least in the show I am always right which makes me a good lie detector; truth be told I am also very good in guessing how a movie ends which might also have to do with it. I am starting to be a little paranoid about it and I pay close attention to people when they talk to me, trying to pick up the signs. I need to test this asap in a reliable source... How awesome would that be?